Contradiction with Ezekiel 36:26
This verse suggests that a person's nature can change as God promises to give a new heart and spirit, contrasting with Proverbs 27:22's implication of inherent foolishness remaining unchanged.
Ezekiel 36:26: A new heart also will I give you, and a new spirit will I put within you: and I will take away the stony heart out of your flesh, and I will give you an heart of flesh.
Contradiction with 2 Corinthians 5:17
It states that anyone in Christ becomes a new creation, implying transformation is possible, contrary to the persistence of folly suggested in Proverbs 27:22.
2 Corinthians 5:17: Therefore if any man [be] in Christ, [he is] a new creature: old things are passed away; behold, all things are become new. [he is: or, let him be]
Contradiction with Romans 12:2
This verse encourages transformation through the renewal of the mind, suggesting change is possible, unlike Proverbs 27:22 which suggests stubborn permanence of foolishness.
Romans 12:2: And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what [is] that good, and acceptable, and perfect, will of God.
Paradox #1
This proverb suggests that foolishness is inherent and difficult to change, even with repeated correction. The moral inconsistency could be the implication that people cannot change their nature, which contradicts other parts of the Bible that emphasize redemption, transformation, and personal growth through faith and understanding.